Finding the Fourth Proportional to 8,490,990.44, 12,736,456.86 and 3,442,289
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Solution
The fourth proportional to 8,490,990.44, 12,736,456.86 and 3,442,289 is: 5,163,421.82
Step by Step Solution
- Step 1: Write the proportion equation
8,490,990.44 : 12,736,456.86 = 3,442,289 : x - Step 2: Convert to fraction form
8,490,990.44/12,736,456.86 = 3,442,289/x - Step 3: Cross multiply
8,490,990.44x = 12,736,456.86 × 3,442,289 - Step 4: Simplify right side
8,490,990.44x = 43,842,565,348,152.54 - Step 5: Solve for x
x = 43,842,565,348,152.54/8,490,990.44 - Step 6: Final answer
x = 5,163,421.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.